How does imputed righteousness affect a believer's standing before God?

Imputed righteousness is a fundamental doctrine in which the righteousness of Christ is credited to the believer's account, thus justifying them before God. Romans 4 highlights this truth as it recounts that 'Abraham believed God, and it was counted to him for righteousness' (Romans 4:3). This means that believers, despite their inherent sinfulness, are seen as righteous in God’s sight solely through faith in Christ's meritorious work. Consequently, this shifts the focus from personal achievement to reliance on the grace of God, assuring believers that they stand faultless before Him, as articulated in 2 Corinthians 5:21, 'For he hath made him to be sin for us, who knew no sin; that we might be made the righteousness of God in him.'